Term | Definition |
Renewable | A resource that is naturally replaced in a relatively short time |
Solar energy | energy from the sun |
Biomass fuel | made from things that were once alive |
geothermal energy | heat energy in Earths interior from water or streams that had been heated by magma |
Fuel | material such as coal, gas, or oil that is burned to produce heat or power |
nonrenewable | a resource that forms at a rate that is much slower than then the rate in which it is being consumed |
Fossil fuel | a nonrenewable energy resource formed from the remains of organisms that lived long ago |
conservation | the action of conserving something, in particular |
pollution | the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects |
pollutant | a substance that pollutes something, especially water or the atmosphere |
air pollution | the contamination of the atmosphere by the introduction of pollutants from humans or natural sources |
water pollution | when a body of water is contaminated, mostly by human activities |
contour plowing | plowing along the contours of the land in order to minimize soil erosion |
windbreaks | a structure such as a row of trees or a fence, wall, or screen, that provides shelter or protection from the wind |
conservation plowing | plowing depending on the direction of the land |
conservation | the action of conserving something, in particular |
pollution | the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects |
pollutant | a substance that pollutes something, especially water or the atmosphere |
air pollution | the contamination of the atmosphere by the introduction of pollutants from humans or natural sources |
water pollution | when a body of water is contaminated, mostly by human activities |
contour plowing | plowing along the contours of the land in order to minimize soil erosion |
windbreaks | a structure such as a row of trees or a fence, wall, or screen, that provides shelter or protection from the wind |
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crop rotation | a system of farming in which a piece of land is planted with different crops in succession, in order to improve soil fertility and control crop pests and diseases |
fallow | plowed and harrowed but left unsown for a period in order to restore its fertility as part of a crop rotation or to avoid surplus production |